Evidence map›Paper›PMID 10424815›Full record

ArticleJournal of medical genetics1999

Double heterozygosity for mutations in the beta-myosin heavy chain and in the cardiac myosin binding protein C genes in a family with hypertrophic cardiomyopathy.

P Richard, R Isnard, L Carrier, O Dubourg, Y Donatien, B Mathieu, G Bonne, F Gary, P Charron, M Hagege and 3 more

Open access · greenAbstract read
In one paragraph

Article in Journal of medical genetics, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Hypertrophic Cardiomyopathy is a Disease of Sarcomere Proteins.Methodist DeBakey cardiovascular journal · 2026
    Review
  4. Article
  5. Double heterozygosity forBMJ case reports · 2025
    Article
  6. MYH7 in cardiomyopathy and skeletal muscle myopathy.Molecular and cellular biochemistry · 2024
    Review
  7. Human Genetics of Cardiomyopathies.Advances in experimental medicine and biology · 2024
    Article
  8. Article
  9. A One Health Approach to Hypertrophic Cardiomyopathy.The Yale journal of biology and medicine · 2017
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Hypertrophic cardiomyopathy: how do mutations lead to disease?Arquivos brasileiros de cardiologia · 2014
    Review
  15. Article
  16. Clinical utility gene card for: hypertrophic cardiomyopathy (type 1-14).European journal of human genetics : EJHG · 2011
    Article
  17. Nuclear cardiac imaging in hypertrophic cardiomyopathy.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2011
    Review
  18. Founder mutations in hypertrophic cardiomyopathy patients in the Netherlands.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2010
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

P RichardService de Biochimie B, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.
R Isnard
L Carrier
O Dubourg
Y Donatien
B Mathieu
G Bonne
F Gary
P Charron
M Hagege
M Komajda
K Schwartz
B Hainque
Sorbonne Université · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Familial hypertrophic cardiomyopathy is a genetically heterogeneous autosomal dominant disease, caused by mutations in several sarcomeric protein genes. So far, seven genes have been shown to be associated with the disease with the beta-myosin heavy chain (MYH7) and the cardiac myosin binding protein C (MYBPC3) genes being the most frequently involved. We performed electrocardiography (ECG) and echocardiography in 15 subjects with hypertrophic cardiomyopathy from a French Caribbean family. Genetic analyses were performed on genomic DNA by haplotype analysis with microsatellite markers at each locus involved and mutation screening by single strand conformation polymorphism analysis. Based on ECG and echocardiography, eight subjects were affected and presented a classical phenotype of hypertrophic cardiomyopathy. Two new mutations cosegregating with the disease were found, one located in the MYH7 gene exon 15 (Glu483Lys) and the other in the MYBPC3 gene exon 30 (Glu1096 termination codon). Four affected subjects carried the MYH7 gene mutation, two the MYBPC3 gene mutation, and two were doubly heterozygous for the two mutations. The doubly heterozygous patients exhibited marked left ventricular hypertrophy, which was significantly greater than in the other affected subjects. We report for the first time the simultaneous presence of two pathological mutations in two different genes in the context of familial hypertrophic cardiomyopathy. This double heterozygosity is not lethal but is associated with a more severe phenotype.

Indexed as

HeterozygoteAdultAgedAged, 80 and overCardiomyopathy, HypertrophicCarrier ProteinsFemaleGenotypeHaplotypesHumansMaleMiddle AgedMutationMyocardiumMyosin Binding Protein CMyosinsCarrier ProteinsMyosin Binding Protein CMyosins

Identifiers

PMID10424815
PMCPMC1734410
OpenAlexW2110412482

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.